**SD-12 放大演算法介紹**  **教學影片 8K Upscale with Ultimate SD Upscale** https://www.youtube.com/watch?v=jD7ojw1u1AI Open Model Database: https://openmodeldb.info/ 介紹圖片高清放大四種方法 演算法的選項都可差別不大 放大尺寸時可以先放大2倍 (設備好的話 再考慮放大四倍) 1.在文生圖中 高解析度修正 Hires.fix  2.在圖生圖中 Script中SD upscale  3.在附加功能(Extras)中  4.一樣在圖生圖中 先用ControlNet選"Tile/Blur" (需先在extension中 安裝 ultimate-upscale-for-automatic1111) https://github.com/Coyote-A/ultimate-upscale-for-automatic1111.git (放大) (需先下載 model: 4x-UltraSharp.pth 放在D:\SD-files\SDlocal\stable-diffusion-webui\models\ESRGAN 中) 網址: https://huggingface.co/lokCX/4x-Ultrasharp/tree/main )  再到Script 選擇size & Upscaler 
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